CN203984107U - Plastic sealed single-phase electric machine stator - Google Patents
Plastic sealed single-phase electric machine stator Download PDFInfo
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- CN203984107U CN203984107U CN201420391312.5U CN201420391312U CN203984107U CN 203984107 U CN203984107 U CN 203984107U CN 201420391312 U CN201420391312 U CN 201420391312U CN 203984107 U CN203984107 U CN 203984107U
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Abstract
The utility model relates to plastic sealed single-phase electric machine stator, comprise stator core, stator winding and stator plastic packaging, in the outside circumference of stator core, offer internal layer stator slot and the outer stator slot arranged along its spaced radial, wherein inside/outside layer stator slot is made up of multiple inside/outside layer stator slot unit that are positioned on same periphery, and multiple inside/outside layer stator slot unit is uniformly distributed radially around the center of circle of stator core; Inside/outside layer stator slot unit is closing in shape and its end that closes up is provided with the inside/outside lead-over groove that is communicated to stator core outer rim side face, the notch of inside and outside lead-over groove is arranged along stator core outer rim side face interval, stator winding comprises the first winding and the second winding, the first winding winding is between the cell wall of two adjacent inner layer stator slot unit, the second winding winding is between the cell wall of two adjacent outer stator slot unit, and stator core and stator winding outside are injected with insulation crust.This structure adopts machine coiling, and wire turn is arranged closely, and production cost is low.
Description
Technical field
The utility model relates to machine field, particularly plastic sealed single-phase electric machine stator.
Background technology
The stator winding of existing single-phase external rotor motor is the coil that first enamelled wire is coiled into a beam shaping (as ellipticity), then coil is embedded in stator slot.Two rectangular limits that form a wire loop are placed in different stator slots, the several chi grooves of middle span, that is to say that a wire loop needs two stator slots to deposit, and only in stator slot, leave enough spaces rule smoothly, relatively loose between coil turn, the space that coil can not be full of stator slot to greatest extent causes the space availability ratio of groove low, and the size of stator slot also will be large, thereby causes motor volume to increase.Also have a large amount of coils to overhang in stator core two end axles upwards, cause the waste of enamelled wire, cause production cost high.Most enterprise adopts manual wire embedding, workman's operative skill is had relatively high expectations, and workload is large, and production efficiency is relatively low.
The stator winding that separately has a kind of single-phase external rotor motor is directly in the yoke portion of stator core: by stator core be divided into two semi-circular, respectively by coil in the yoke portion of stator core, be combined into again afterwards a circular iron core, after injection moulding, become a complete circle stator, this version coil used is many, that is to say same existence wave waste enameled wire problem.And main winding and auxiliary winding is close to mutually, need to insulating trip be set between main winding and auxiliary winding, production cost is high.
Summary of the invention
The space availability ratio that the purpose of this utility model is to provide a kind of stator core slot is high, and coiling facilitates the plastic sealed single-phase electric machine stator that cost is low.
For achieving the above object, the utility model has adopted following technical scheme: a kind of plastic sealed single-phase electric machine stator, comprise stator core and stator winding, in the outside circumference of stator core, offer internal layer stator slot and the outer stator slot arranged along its spaced radial, wherein inside/outside layer stator slot is made up of the inside/outside layer stator slot unit being positioned on same periphery, and inside/outside layer stator slot unit is uniformly distributed radially around the center of circle of stator core; Inside/outside layer stator slot unit is closing in shape and its end that closes up is provided with the inside/outside lead-over groove that is communicated to stator core outer rim side face, the notch of inside and outside lead-over groove is arranged along stator core outer rim side face interval, described stator winding comprises the first winding and the second winding, the first winding winding is between the cell wall of two adjacent inner layer stator slot unit, the second winding winding is between the cell wall of two adjacent outer stator slot unit, and described stator core and stator winding outside are injected with insulation crust.
Owing to adopting above technical scheme: first, second winding is divided into two-layer winding on stator core, this structure can adopt machine coiling, between wire turn, arrange closely, the space that takies stator slot unit is little, and the stator slot unit of same area can hold more umber of turn, and the space availability ratio of stator slot unit is obviously promoted, thereby increase the capacity of motor, the consumption of simultaneously having saved enamelled wire, reduces production costs, and enhances productivity.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of stator core;
Fig. 3 is the front view of stator core;
Fig. 4 is the left cutaway view of Fig. 3.
Embodiment
As illustrated in fig. 1 and 2, a kind of stator, comprise stator core 10 and stator winding 20, in the outside circumference of stator core 10, offer internal layer stator slot and the outer stator slot arranged along its spaced radial, wherein inside/outside layer stator slot is made up of the inside/outside layer stator slot unit 11/12 being positioned on same periphery, and inside/outside layer stator slot unit 11/12 is uniformly distributed radially around the center of circle of stator core 10; Inside/outside layer stator slot unit 11/12 is closing in shape and its end that closes up is provided with the inside/outside lead-over groove 13/14 that is communicated to stator core 10 outer rim side faces, the notch of inside and outside lead-over groove 13,14 is arranged along stator core 10 outer rim side face intervals, described stator winding 20 comprises the first winding 21 and the second winding 22, the first winding 21 windings are between the cell wall of two adjacent inner layer stator slot unit 11, the second winding 22 windings are between the cell wall of two adjacent outer stator slot unit 12, and described stator core 10 and stator winding 20 outsides are injected with insulation crust.The stator of the good coil of coiling is put into injection molding machine and carry out plastic packaging, the shell that injection moulding forms is insulation crust, and this insulation crust can effectively play insulating effect, and insulation crust makes stator have certain rigidity simultaneously, effectively protects stator.
On stator core 10, the structure of inside and outside layer stator slot specifically describes as follows: internal layer stator slot is made up of multiple internal layer stator slot unit 11 that are positioned on same periphery, and multiple internal layer stator slots unit 11 is uniformly distributed radially around the center of circle of stator core 10; Internal layer stator slot unit 11 is closing in shape and its end that closes up is provided with the interior lead-over groove 13 that is communicated to stator core 10 outer rim side faces; Outer stator slot is made up of multiple outer stator slot unit 12 that are positioned on same periphery, and multiple outer stator slots unit 12 is uniformly distributed radially around the center of circle of stator core 10; Outer stator slot unit 12 is closing in shape and its end that closes up is provided with the outer lead-over groove 14 that is communicated to stator core 10 outer rim side faces.The notch of inside and outside lead-over groove 13,14 is arranged along stator core 10 outer rim side face intervals.The first winding 21 in the entity part of the stator core between two adjacent inner layer stator slot unit 11, the second winding around 22 in the entity part of the stator core between two adjacent outer stator slot unit 12.Internal layer stator slot unit 11 is identical with the number of outer stator slot unit 12, and the number of stator slot unit is exactly motor pole number, can be 4,8,16,32 etc.As Fig. 3, the first winding 21, the second winding 22 are arranged along the circumferential interval of stator core 10, the stator core entity part of the notch of interior lead-over groove 13 through two adjacent outer stator slot unit 12 extends on the outer rim side face of stator core 10, first, second winding is staggeredly arranged, that avoids that two groups of windings lean on is too near, between two windings without insulating.
As Fig. 4, described stator core 10 is provided with insulation retaining frame 15, and this insulation retaining frame 15 comprises the first insulating trip 151 and the second insulating trip 152 being attached on inner or outer layer stator slot unit 11,12 groove inwalls on two axial ends that are wrapped in stator core 10.The first insulating trip 151 wraps up side face and the edge of stator core, the second insulating trip 152 is communicated with into an overall structure with the first insulating trip 151, insulation retaining frame 15 can adopt two halves formula structure, snap in respectively in stator slot from two end faces of stator core, the insulation overall structure of retaining frame 15 and the structure of stator core 10 are substantially similar.Arranging of retaining frame 15 of insulation can avoid damaging enamelled wire, ensures product quality.
The first described winding 21 is the auxiliary winding with electric capacity, and the second winding 22 is main winding.Also can be by main winding winding at internal layer in the utility model, auxiliary winding winding is at skin, but because interior lead-over groove 13 is darker, compare the second winding around the magnetic flux leakage of the first winding on internal layer stator slot many, if by the auxiliary winding winding with electric capacity on internal layer stator slot, electric capacity can make up part leakage field, thereby ensures the performance of motor, the better effects if that this scheme produces.
Described insulation retaining frame 15 is plastic protective sleeve or insulating paper or insulation board.
The utility model adopts mechanical automation coiling, by the first winding 21 windings between the cell wall of two adjacent inner layer stator slot unit 11, the second winding 22 windings are between the cell wall of two adjacent outer stator slot unit 12, and the vallecular cavity of internal layer stator slot unit 11 and outer stator slot unit 12 is used for placing winding.First the first winding 21 on internal layer stator slot 11 when coiling, then the second winding 22, the first windings 21 on outer stator slot 12 and second are positioned on different circumference around 22 groups, do not interfere between the two.A coil of first, second winding 21,22 is exactly a utmost point, and magnetic flux leakage is very little, and winding coefficient is high, and the air-gap field waveform that first, second winding 21,22 produces is overlapping rationally, is connected closely, is fully used in motor gas-gap space.And machine directly will wind the line winding between the cell wall of two adjacent stators groove unit, between wire turn, arrange closely, the space that takies inside and outside layer stator slot unit 11,12 is little, the gross area that the stator slot unit of same area holds winding enamelled wire is large, that is to say and can hold more umber of turn, the space availability ratio of stator slot unit is obviously promoted, thereby has increased the capacity of motor.The relatively existing two halves formula of the stator of this structure stator processing is more convenient, winding mode is also comparatively simple, as long as connect primary line in the utility model in the time of winding the first winding, the coiling of whole the first winding is coherent, that is to say that the first winding is two bobbin winding heads, in like manner the second winding also only has two bobbin winding heads.And in prior art, in the stator structure of two halves formula, on a stator halfbody, just have two the first winding bobbin winding heads, and two the second winding bobbin winding heads, whole stator just has eight bobbin winding heads, has wasted enamelled wire.And need to carry out wiring to the bobbin winding head on two stator halfbodies in the time that stator halfbody closes up, time-consuming.Meanwhile, the first winding and second winding of two halves formula stator are adjacent one another are, need to carry out two windings insulated from each otherly, lose time to waste raw material.So the relatively existing two halves formula of the stator in the utility model stator, saves enamelled wire, threading speed is faster, and it is simple that stator system does operation.The relatively existing rule formula of the utility model stator, saves the enamelled wire being suspended on stator core end face, can save 30% enamelled wire, and the space availability ratio of stator slot is high, and the volume of stator core is little, significantly cost-saving.And the mode that in the utility model, winding adopts machine to wind the line, save manual wire embedding's operation, reduce the amount of labour, operating efficiency is significantly improved.
Claims (4)
1. a plastic sealed single-phase electric machine stator, it is characterized in that: comprise stator core (10) and stator winding (20), in the outside circumference of stator core (10), offer internal layer stator slot and the outer stator slot arranged along its spaced radial, wherein inside/outside layer stator slot is made up of the inside/outside layer stator slot unit (11/12) being positioned on same periphery, and inside/outside layer stator slot unit (11/12) is uniformly distributed radially around the center of circle of stator core (10), inside/outside layer stator slot unit (11/12) is closing in shape and its end that closes up is provided with the inside/outside lead-over groove (13/14) that is communicated to stator core (10) outer rim side face, in, outer lead-over groove (13, 14) notch is arranged along stator core (10) outer rim side face interval, described stator winding (20) comprises the first winding (21) and the second winding (22), the first winding (21) winding is between the cell wall of two adjacent inner layer stator slot unit (11), the second winding (22) winding is between the cell wall of two adjacent outer stator slot unit (12), described stator core (10) and stator winding (20) outside are injected with insulation crust.
2. plastic sealed single-phase electric machine stator according to claim 1, it is characterized in that: described stator core (10) is provided with insulation retaining frame (15), this insulation retaining frame (15) comprise the first insulating trip (151) on two axial ends that are wrapped in stator core (10) and be attached in or beyond the second insulating trip (152) on layer stator slot unit (11,12) groove inwall.
3. plastic sealed single-phase electric machine stator according to claim 1 and 2, is characterized in that: described the first winding (21) is the auxiliary winding with electric capacity, and the second winding (22) is main winding.
4. plastic sealed single-phase electric machine stator according to claim 2, is characterized in that: described insulation retaining frame (15) is plastic protective sleeve or insulating paper or insulation board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420391312.5U CN203984107U (en) | 2014-07-15 | 2014-07-15 | Plastic sealed single-phase electric machine stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420391312.5U CN203984107U (en) | 2014-07-15 | 2014-07-15 | Plastic sealed single-phase electric machine stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203984107U true CN203984107U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420391312.5U Active CN203984107U (en) | 2014-07-15 | 2014-07-15 | Plastic sealed single-phase electric machine stator |
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| Country | Link |
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| CN (1) | CN203984107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113964991A (en) * | 2021-11-15 | 2022-01-21 | 郑州轻工业大学 | Motor stator structure of surrounding type secondary winding and fault-tolerant operation |
-
2014
- 2014-07-15 CN CN201420391312.5U patent/CN203984107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113964991A (en) * | 2021-11-15 | 2022-01-21 | 郑州轻工业大学 | Motor stator structure of surrounding type secondary winding and fault-tolerant operation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |